.chat { position: fixed; right: 20px; bottom: calc(20px + env(safe-area-inset-bottom, 0px)); z-index: 50; font-family: var(--body);
  display: flex; flex-direction: column-reverse; align-items: flex-end; gap: 8px; }
.chat-launcher { display: grid; grid-template-columns: auto 1fr; column-gap: 8px; align-items: center; text-align: left;
  background: var(--ink); color: var(--ground); border: 0; padding: 10px 16px; cursor: pointer; box-shadow: var(--shadow);
  font: 600 .95rem/1.1 var(--display); letter-spacing: .02em; }
.chat-launcher small { grid-column: 2; font: 400 .66rem/1.2 var(--mono); opacity: .75; letter-spacing: 0; }
.chat-dot { grid-row: span 2; width: 9px; height: 9px; background: var(--ok); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 35%, transparent); }
.chat-launcher.has-new .chat-dot { background: var(--zinc); }
.chat-panel { width: min(400px, calc(100vw - 32px)); height: min(600px, calc(100vh - 110px)); background: var(--surface);
  border: 1px solid var(--rule); box-shadow: var(--shadow); display: grid; grid-template-rows: auto 1fr auto; }
.chat-head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; padding: 12px 14px; background: var(--ink); color: var(--ground); }
.chat-head b { display: block; font: 600 1.02rem var(--display); }
.chat-head span { font: 400 .72rem/1.3 var(--mono); opacity: .8; }
.chat-close { background: none; border: 0; color: inherit; font-size: 1.5rem; line-height: 1; cursor: pointer; padding: 0 4px; }
.chat-log { overflow-y: auto; padding: 14px; display: grid; gap: 10px; align-content: start; background: var(--ground); }
.chat-msg { max-width: 88%; padding: 8px 11px; font-size: .9rem; line-height: 1.45; white-space: pre-wrap; overflow-wrap: anywhere; }
.chat-msg time { display: block; font: 400 .66rem var(--mono); color: var(--muted); margin-top: 4px; }
.chat-msg.client { justify-self: end; background: var(--accent); color: var(--accent-ink); }
.chat-msg.client time { color: inherit; opacity: .75; }
.chat-msg.ai { background: var(--surface); border: 1px solid var(--rule); }
.chat-msg.manager { background: var(--zinc-soft); border-left: 3px solid var(--zinc); }
.chat-msg.manager::before { content: "Менеджер"; display: block; font: 500 .66rem var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--zinc); margin-bottom: 3px; }
.chat-msg.system { justify-self: center; max-width: 100%; background: transparent; color: var(--muted); font-size: .8rem; text-align: center; padding: 2px 8px; }
.chat-msg a { color: inherit; text-decoration: underline; }
.chat-typing { color: var(--muted); font: 400 .8rem var(--mono); }
.chat-form { border-top: 1px solid var(--rule); padding: 10px; display: grid; gap: 8px; }
.chat-consent { display: grid; gap: 6px; font-size: .76rem; color: var(--muted); }
.chat-consent label { display: flex; gap: 6px; align-items: flex-start; }
.chat-consent input[type=text] { width: 100%; font-size: .85rem; }
.chat-input { display: flex; gap: 8px; align-items: flex-end; }
.chat-input textarea { flex: 1; min-width: 0; resize: none; font-size: .9rem; min-height: 108px; }
.chat-input .btn { flex: none; padding: 8px 12px; font-size: .85rem; }
.chat-foot { display: flex; justify-content: flex-end; gap: 8px; font-size: .8rem; }
#chat-error { color: var(--bad); text-align: right; }
@media (max-width: 480px) { .chat { right: 8px; left: 8px; } .chat-panel { width: 100%; } .chat-launcher { margin-left: auto; } }
@media print { .chat { display: none; } }